Random String Generator

Secure random strings and passwords.

Runs in your browser: what you paste is never uploaded

143 bits of entropy each · very strong

Made with your browser's secure random generator, every character equally likely.

1Paste or type your inputUse the box above, or click Sample to try it with an example.
2Choose your optionsSet the length and how many, choose lowercase, uppercase, digits and symbols, and optionally avoid look-alike characters like l, 1 and O, 0.
3Copy the resultCopy it with one click. Nothing is sent anywhere.

Generate secure random strings and passwords with the length and characters you choose, with the strength shown in bits.

Aim for at least 80 bits of entropy; around 16 random characters from letters and digits gets you there.

Yes. They come from your browser's cryptographically secure generator, without bias towards any character.

No. The tool runs entirely in your browser and never sends what you type or paste to a server.

Yes. It's free, with no sign-up and no limits.